Description
The email module, specifically the "BytesGenerator" class, didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized. This is only applicable if using "LiteralHeader" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in "BytesGenerator".
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Python Software Foundation CPython
Default version status: unaffected
0 to < 3.10.20affected3.11.0 to < 3.11.15affected3.12.0 to < 3.12.13affected3.13.0 to < 3.13.12affected3.14.0 to < 3.14.3affected3.15.0a1 to < 3.15.0a6affected
References
- https://github.com/python/cpython/pull/144126 ↗
- https://github.com/python/cpython/issues/144125 ↗
- https://cve.org/CVERecord?id=CVE-2024-6923 ↗
- https://mail.python.org/archives/list/security-announce@python.org/thread/6ZZULGALJTITEAGEXLDJE2C6FORDXPBT/ ↗
- https://github.com/python/cpython/commit/052e55e7d44718fe46cbba0ca995cb8fcc359413 ↗
- https://github.com/python/cpython/commit/0a925ab591c45d6638f37b5e57796f36fa0e56d8 ↗
- https://github.com/python/cpython/commit/7877fe424415bc4a13045e62a90a7277413d8cb9 ↗
- https://github.com/python/cpython/commit/842ce19a0c0b58d61591e8f6a708c38db1fb94e4 ↗
- https://github.com/python/cpython/commit/8cdf6204f4ae821f32993f8fc6bad0d318f95f36 ↗
- https://github.com/python/cpython/commit/e417f05ad77a4c30ddc07f99e90fc0cef43e831a ↗